JP2005353483A - Battery mis-insertion prevention device - Google Patents

Abstract

An apparatus for preventing erroneous insertion of a battery, which prevents the polarity from being reversed when the battery is vertically inserted, is provided.
A device for preventing erroneous insertion of a battery to be inserted into a battery case having a battery insertion hole, which has a protrusion and is attached to the battery case at the back end with respect to the battery insertion direction. A holding member 10 that is rotatably attached, a first urging means that urges the holding member in a first turning direction that closes the battery insertion hole, and the holding member that makes the first turning. A stopper formed on the battery case for preventing rotation in the direction, a latch member 16 attached to the holding member at a front end of the holding member with respect to the battery insertion direction, and the like. Constitute.
[Selection] Figure 3

Description

  The present invention relates to a battery misinsertion preventing apparatus for preventing erroneous insertion of a battery having a wrong polarity.

  In a device using a battery, such as a portable electronic device, when replacing the battery with a new one when the battery is consumed, the battery may be inserted with the wrong polarity. If it is used without noticing this erroneous insertion, there is a risk of equipment damage, battery rupture, and human risk due to battery leakage.

  In order to avoid this risk, conventionally, when the polarity of the battery is wrong, a structure that does not provide continuity with the electrode on the device side or a method that prevents the battery from fitting unless the battery is in the specified orientation is used. It was. However, such a conventional method cannot be applied to a place where the batteries come into contact with each other in the case of insertion, or only a method of inserting the battery from the side can be realized.

For example, when three or more batteries are directly connected and used in series, the battery near the center is sandwiched between the batteries. Therefore, depending on the shape of the electrode on the device side, conduction may occur when the polarity is reversed. It was impossible to get lost. In other words, it was not allowed for safety to use three or more batteries connected in series.
JP-A-11-250883 Japanese Utility Model Publication No. 6-17109 Japanese Utility Model Publication No. 6-9053 Japanese Patent Laid-Open No. 11-154498 JP 2001-332236 A JP 2000-82450 A

  The configuration in which a plurality of batteries are inserted vertically allows the device opening for battery replacement to be made to the minimum size, and when the device is kept airtight and the limited operation panel surface is used effectively It is effective when necessary.

  Conventional battery erroneous insertion prevention devices are mostly applied to a configuration in which batteries are inserted from the side, and there is a problem that they cannot be applied to a configuration in which a plurality of batteries are inserted vertically.

  The present invention has been made in view of these points, and an object of the present invention is to provide a battery erroneous insertion prevention device that prevents erroneous battery insertion in a mode in which the battery is inserted vertically. .

  According to one aspect of the present invention, there is provided a device for preventing erroneous insertion of a battery to be inserted into a battery case having a battery insertion hole, which has a catch portion and is attached to the battery case at the back end with respect to the battery insertion direction. A holding member that is rotatably attached, a first urging means that urges the holding member in a first turning direction that closes the battery insertion hole, and the holding member that is in the first turning direction. A stopper formed on the battery case for preventing the battery from rotating, a latch member rotatably attached to the holding member at a front end of the holding member with respect to the battery insertion direction, and the latch A second urging means for urging the member in a second rotation direction opposite to the first rotation direction, and one end abutting on a positive electrode of a battery inserted at a home position and the other end being the holding member The latch member is engaged with the catch portion of A stopper member that is movably attached and a third urging means that urges the stopper member in the second rotation direction, and a battery is inserted into the battery insertion hole from the positive electrode side The stopper member is pushed by the positive electrode of the battery and rotates in the first rotation direction, so that the engagement between the stopper member and the catching portion is released, and the insertion of the battery is allowed. When the battery is inserted into the battery insertion hole, the stopper member and the catching portion are held in engagement so that the stopper member prevents further insertion of the battery. An apparatus for preventing erroneous insertion of a battery is provided.

  Preferably, the first, second and third urging means are each constituted by a coil spring. Further, the latch member and the stopper member are restricted to the home position by the wall of the battery case. Preferably, the stopper member has a first protrusion that can be brought into contact with the positive electrode of the battery formed at one end and a second protrusion that can be engaged with a catching portion of the holding member formed at the other end.

  Preferably, the battery erroneous insertion preventing device further includes an engagement piece engageable with the battery at the tip, and a first position where the front end is pushed into the battery case and a second position protruding from the battery case. Battery removal lever that can be moved between

  According to another aspect of the present invention, there is provided a device for preventing erroneous insertion of a battery to be inserted into a battery case having a battery insertion hole, wherein the battery case has a catch portion and is located at an end on the back side with respect to the battery insertion direction. A holding member rotatably attached to the battery, a first urging means for urging the holding member in a first turning direction that closes the battery insertion hole, and the holding member turning the first turning member. A stopper formed on the battery case for preventing rotation in a direction, a latch member rotatably attached to the holding member at a front end of the holding member with respect to a battery insertion direction, A second urging means for urging the latch member in a second rotation direction opposite to the first rotation direction; and one end of the latch member abutting on a negative electrode of the battery inserted at the home position and the other end holding the holding member The latch member to engage the catch portion of the member; A stopper member attached to be rotatable and a third urging means for urging the stopper member in the second turning direction are provided, and a battery is inserted into the battery insertion hole from the negative electrode side. In this case, when the stopper member is pushed by the negative electrode of the battery and rotates in the first rotation direction, the engagement between the stopper member and the catching portion is released, and the insertion of the battery is permitted. When the battery is inserted into the battery insertion hole from the side, the stopper member prevents the battery from being further inserted by maintaining the engagement between the stopper member and the catching portion. A device for preventing erroneous insertion of a battery is provided.

  According to still another aspect of the present invention, there is provided a device for preventing erroneous insertion of a battery to be inserted into a battery case having a battery insertion hole, wherein the front end protrudes from the battery case and the end is A lever attached to the battery case so as to be movable between a second position pushed into the battery case and a position closer to the battery insertion hole than the lever, and moves between a lowered position and a raised position And a first plate and a second connecting member that are pivotally attached to the lever and the plate member, and form a parallelogram in cooperation with the lever and the plate member. A plurality of insulating plates fixed to the plate member spaced apart from each other by the length of the battery, a plurality of slits formed in the battery case facing the battery insertion holes into which the respective insulating plates are inserted, and It was equipped with Battery erroneous insertion prevention unit that is provided.

  Preferably, the erroneous battery insertion preventing device further includes a lid that is attached to the battery case and holds the lever in the second position when closed. Preferably, the battery case includes a positive electrode formed at the innermost part of the battery insertion hole, and an insulating ring projecting from the electrode surface formed around the positive electrode by a height equal to or less than the height of the positive electrode convex portion of the battery. have.

  According to the first aspect of the present invention, if the battery is erroneously inserted when the battery is inserted, the battery cannot be completely inserted. Therefore, the insertion method can be immediately corrected each time.

  According to the second aspect of the invention, in addition to the effects described above, it is possible to prevent erroneous insertion of a plurality of batteries. In particular, it is possible to prevent erroneous battery insertion even when three or more batteries that have not been realized so far are inserted in series.

  Also, if the polarity of the battery cannot be confirmed visually due to dark work, etc., according to the battery misinsertion prevention device of the present invention, the correct polarity is obtained if it is inserted first, and if it does not enter, it is incorrect. Since the polarity is clearly recognized, the battery can be inserted with the correct polarity. In particular, when wearing gloves, the present invention is particularly effective because the polarity may not be determined by groping.

  According to the third aspect of the invention, when the lever is operated after the battery is inserted, if the battery is erroneously inserted, the lever is hard and has a sense of resistance. If the lever is operated as it is without noticing the erroneous insertion and the lid is closed, the circuit is turned off, so that the device does not operate and the erroneous insertion is noticed.

  Referring to FIG. 1, there is shown a battery erroneous insertion preventing apparatus according to a first embodiment of the present invention.

  1A is a perspective view, FIG. 1B is a plan view thereof, and FIG. 1C is a side view thereof. The battery case 2 includes a battery insertion hole 4 and an erroneous insertion prevention device (latch mechanism) accommodating space 6 provided facing the battery insertion hole 4.

  The erroneous insertion prevention device (latch mechanism) 8 includes a holding member 10 that is rotatably attached to the battery case 2 by a pin 12 at an end on the back side with respect to the battery insertion direction. The holding member 10 is biased by the coil spring 14 in the direction of closing the battery insertion hole 4, that is, in the counterclockwise direction.

  The holding member 10 can rotate about 30 degrees around the pin 12 in the clockwise direction, but is prevented from rotating in the counterclockwise direction because it abuts against the wall of the battery case 2 in the illustrated state. .

  A latch member 16 is rotatably attached to a front end portion of the holding member 10 with respect to the battery insertion direction by a pin 18. The latch member 16 is urged clockwise by the coil spring 20.

  The latch member 16 can rotate about 90 degrees in the counterclockwise direction around the pin 18, but in the clockwise direction, the latch member 16 abuts against the holding member 10 in the state shown in the figure, so that its rotation is restricted.

  A stopper member 22 is rotatably attached to the latch member 16 by a pin 24. The stopper member 22 is urged clockwise by a coil spring (not shown). The stopper member 22 can rotate in the counterclockwise direction. However, since the stopper member 22 abuts the holding member 10 in the state shown in the figure in the clockwise direction, its rotation is restricted.

  As shown in FIG. 2, a first protrusion 22a is formed on one end of the stopper member 22, and a pair of second protrusions 22b are formed on the other end side so as to project laterally. Reference numeral 23 denotes a hole for inserting the pin 24.

  The state shown in FIG. 1 shows a state where the erroneous insertion prevention device 8 is in its home position. In this home position, as best shown in FIG. 1C, the second protrusion 22b of the stopper member 22 is engaged with the protrusion 26 of the holding member 10, so that the latch member 16 is rotated counterclockwise. Rotation is prevented.

  As shown in FIG. 3, when the battery 28 is inserted into the battery insertion hole 4 with the correct polarity, that is, with the convex positive electrode (+ pole) 30 at the head, the convex positive electrode 30 is the first protrusion of the stopper member 22. In order to push 22a, the engagement between the protrusion 26 of the holding member 10 and the second protrusion 22b of the stopper member 22 is released as shown in FIG.

  Therefore, as shown in FIG. 4A, the latch member 16 is rotated counterclockwise by being pushed by the battery 28. When the battery 28 is further inserted and the state shown in FIG. 4B is reached, the holding member 10 rotates clockwise against the biasing force of the coil spring 14.

  When the battery is further inserted, the battery 28 gets over the latch member 16 as shown in FIG. 5A, and the latch member 16 is not pushed in the battery insertion direction. The latch member 16 and the stopper member 22 are brought into contact with the holding member 10 as shown in FIG. At this time, the second protrusion 22 b of the stopper member 22 engages with the protrusion 26 of the holding member 10.

  As shown in FIG. 6A, when the subsequent battery 28 is inserted while pushing the previous battery 28, the gap between the batteries passes over the tip of the latch portion (the latch member 16 and the stopper member 22). When trying to do so, the holding member 10 is slightly rotated counterclockwise by the urging force of the coil spring 14, so that the latch portion rises even slightly, and the tip of the latch member 16 is in the battery traveling direction (left lateral direction). Pressed.

  As a result, the holding member 10 is pushed back in the returning direction (counterclockwise direction), and the erroneous insertion preventing device (latch mechanism) 8 returns to the home position in front of the subsequent battery 28 as shown in FIG. 6B. .

  As described above, when the battery is inserted in the correct direction, the battery passes through the latch mechanism 8 of the present embodiment, and the battery insertion is completed with the last battery tip passing over the latch mechanism 8 and the latch opened. To do. As shown in FIG. 7, the lid 34 is closed to enable energization. 32 is a positive electrode (+ electrode) provided on the battery case 20, and 36 is a negative electrode (−electrode) provided on the lid 34.

  As shown in FIG. 8, when the battery 28 is taken out from the battery case 2 as indicated by an arrow 38, if a gap is opened between the batteries, the holding member 10 may return to the original position.

  However, the battery 28 that comes out later pushes the latch member 16 to the lower right by its own weight, so that the holding member 10 rotates in the clockwise direction, and the latch part is retracted, so that the battery 28 can be taken out.

  FIG. 9 shows an embodiment of forced battery removal. It is conceivable that the battery surface is scratched, the battery 28 is caught by the latch mechanism 8, and the battery cannot be removed by its own weight.

  In the present embodiment, the lever 37 having the engagement piece 39 that engages the battery 28 at the front end has a first position where the front end is pushed into the battery case 2 and a second position where the lever 37 protrudes from the battery case 2. A lever 37 that is movable between the two is provided. By opening the lid 34 and pulling the lever 37 from the state shown in the drawing, the battery 28 can be pushed up and removed.

  FIG. 10 shows the operation of the latch mechanism 8 when the polarity of the battery to be inserted is wrong. That is, when the battery 28 is inserted with the negative electrode at the head, the negative electrode of the battery does not protrude, so the latch member 16 is pushed together with the stopper member 22 and the latch member 16 is rotated counterclockwise around the pin 18. However, since the second protrusion 22b of the stopper member 22 is engaged with the protrusion 26 of the holding member 10, it cannot rotate counterclockwise.

  Further, the holding member 10 receives a force that rotates the latch member 16 counterclockwise by the force pushing the latch member 16 in the left lateral direction, but the holding member 10 abuts against the battery case 2 and cannot rotate counterclockwise. . This prevents the battery from being inserted when the polarity is wrong.

  When the subsequent battery hits the latch member 16 in a state where the latch member 16 does not return to the predetermined position, the first protrusion 22a of the stopper member 22 is pushed by the edge of the battery and rotates counterclockwise. A case where the engagement between the member 22 and the protrusion 26 of the holding member 10 is disengaged can be considered. By using the stopper member 22 ′ as shown in FIG. 11, this malfunction can be avoided.

  That is, as apparent from the comparison with the stopper member 22 shown in FIG. 2, the improved stopper member 22 'has a first protrusion 22a' having a shape with a sharpened tip. Other shapes are the same as those of the stopper member 22 shown in FIG.

  By improving the shape of the stopper member 22 ′, as shown in FIG. 12, since the latch member 16 hits the edge of the battery 28 before the stopper member 22 ′, the stopper member 22 ′ rotates counterclockwise. Therefore, the malfunction described above can be prevented.

  Next, with reference to FIG. 13 thru | or FIG. 18, the incorrect insertion prevention apparatus (latch mechanism) 8A of the battery of 2nd Embodiment of this invention is demonstrated. The present embodiment is an embodiment in which a battery is inserted with the negative electrode (negative electrode) at the top.

  In the latch mechanism 8A of this embodiment, the latch member 40 and the stopper member 42 are attached so as to be reversed inside and outside compared to the first embodiment described above. That is, the latch member 40 is rotatably attached to the holding member 10 by the pin 18. The latch member 40 is urged clockwise by the coil spring 20.

  As best shown in FIG. 14, a stopper member 42 is rotatably attached to the outside of the latch member 40 by a pin 24. The stopper member 42 is urged clockwise by a coil spring (not shown).

  As best shown in FIG. 14B, the tip end 42a of the stopper member 42 protrudes beyond the latch member 40 and reacts against the negative electrode of the battery to be inserted (rotates counterclockwise). .

  41 is a hole for inserting the pin 18, and the rear end (left end) 42b of the stopper member 42 is engaged with the protrusion 26 of the holding member 10 at the home position of the latch mechanism 8A. The other structure of this embodiment is the same as that of 1st Embodiment mentioned above.

  FIG. 15 shows the operation of the latch mechanism 8A before the inserted battery has the correct polarity. When the battery 28 is inserted with the negative electrode at the top, the tip 42a of the stopper member 42 protrudes beyond the latch member 40, so that the stopper member 42 is rotated counterclockwise by being pushed by the negative electrode of the battery 28, The engagement between the rear end 42b of the stopper member 42 and the protrusion 26 of the holding member 10 is released. Thereby, the battery 28 can be inserted into the battery case 2 by the same operation as in the first embodiment described above.

  FIG. 16 shows the operation of the latch mechanism 8A when the polarity of the battery to be inserted is wrong. When the battery 28 is inserted with the convex positive electrode 30 at the head, the convex positive electrode 30 contacts the holding member 40 before the tip 42a of the stopper member 42 contacts the battery 28, so that the stopper member 42 does not react (counterclockwise). Does not rotate in the direction of rotation). That is, since the stopper member 42 remains engaged with the protrusion 26 of the holding member 10, the latch member 40 cannot be rotated counterclockwise, and the battery 28 is prevented from being inserted.

  Similarly to the positive latch mechanism 18, when the battery is inserted in the negative latch mechanism 18 </ b> A with the polarity reversed, the edge portion of the battery 28 is in a stage where the latch member 40 does not ride on the convex positive electrode 30. However, since the stopper member 42 is rotated by hitting the tip 42a of the stopper member 42 and the stopper is detached, there is a possibility that the battery may pass through the latch portion even when the battery is inserted with the wrong polarity.

  FIG. 17 shows a stopper member 42 ′ whose shape is improved so as to prevent this malfunction. In other words, in this embodiment, as apparent from the comparison with the stopper member 42 shown in FIG. 14, the tip 42a 'of the stopper member 42' is cut off.

  Due to this shape improvement, when the latch member 40 does not ride on the positive electrode 30 of the battery 28, the latch member 40 contacts the edge of the battery 28 before the stopper member 42 'as shown in FIG. The stopper does not come off without rotating 42 'counterclockwise.

  Furthermore, since the latch member 40 abuts against the positive electrode 30 of the battery even if the battery is pushed in, the battery cannot be pushed any further unless the battery is pulled back. Once the battery is pulled back, the holding member 10 of the latch mechanism 8A returns to its original state, so that the above malfunction does not occur. Reference numeral 31 denotes a negative electrode of the battery 28.

  Next, with reference to FIG. 19 thru | or FIG. 23, the erroneous insertion prevention apparatus of the battery of 3rd Embodiment of this invention is demonstrated. As shown in FIG. 19, the erroneous insertion preventing device 46 of the present embodiment has a gap between a first position where the front end protrudes from the battery case 2 and a second position where the end is pushed into the battery case 2. And a lever 48 attached to the battery case 2 so as to be movable.

  The plate member 50 is disposed in the battery insertion hole 4 rather than the lever 48, and the lever 48 and the plate member 50 are connected by connecting members 52, 54, and 56. Both ends of each connecting member 52, 54, 56 are rotatably attached to the lever 48 and the plate member 50, and the lever 48, the plate member 50 and the connecting member 52, 54, 56 form a parallelogram.

  A plurality of insulating plates 58 are fixed to the plate member 50 so as to be separated from each other by the length of the battery 28 to be inserted. The insulating plate 58 has a thickness less than the height of the convex positive electrode 30 of the battery 28. A plurality of slits 60 are formed in the battery case 2 so as to face the battery insertion holes 4 and into which the insulating plates 58 are inserted.

  An insulating ring 64 is provided around the positive electrode 62 of the battery case 2 so as to protrude from the electrode surface by the height of the convex positive electrode 30 of the battery 28 or less. Although the lid is not shown in FIG. 19, the lid is not closed unless the lever is operated. When the lid is closed, the lever is automatically operated.

  As shown in FIG. 20A, a plurality of batteries 28 are inserted into the battery case 2. At this time, the lever 48 protrudes from the battery case 2 and the plate member 50 is in the lowered position. When the lid 66 is closed from this state, the lever 48 is pushed in, and as shown in FIG. Rises and is inserted into the slit 60.

  As shown in FIG. 20, when a plurality of batteries 28 are inserted into the battery case 2 with the correct polarity of the batteries 28, the thickness of the insulating plate 58 is greater than the height of the convex positive electrode 30 of the battery 28. Since it is thin, the insulating plate 58 is smoothly inserted into the slit 60 when the lever 48 is pushed. Reference numeral 68 denotes a negative electrode (negative electrode) formed on the lid 66.

  FIG. 21 shows a case where the polarities of all the batteries are inserted in reverse. In this case, since the contact between the negative electrode of the leading battery 28 and the positive electrode 62 of the battery case 2 is cut off by the insulating ring 64, the circuit is turned off and no current is supplied. As a result, erroneous insertion of the battery is revealed.

  FIG. 22 shows a case where the polarity of the inserted battery is wrong at one place. In this case, there is no gap due to the convex positive electrode 30 at the location where the negative electrodes abut against each other. Therefore, when the lever 48 is pushed, the insulating plate 58 abuts.

  Therefore, the response when pushing the lever 48 is firm, and erroneous insertion becomes clear. If the lever 48 is pushed in without being noticed, the circuit is turned off at the place where the negative electrodes abut against each other as shown in FIG.

  FIG. 23 shows the case where the polarity of the leading battery is inserted incorrectly. In this case, since the negative electrode of the leading battery 28 hits the insulating ring 64 and the circuit is turned off, no current is supplied.

  Referring to FIG. 24, there is shown a battery erroneous insertion prevention device according to a fourth embodiment of the present invention. 24A is a perspective view, FIG. 24B is a plan view thereof, and FIG. 24C is a side view thereof. In the description of the present embodiment, components that are substantially the same as those of the first embodiment shown in FIG.

  The battery case 2 has a battery insertion hole 4 and an erroneous insertion prevention device (latch mechanism) accommodating space 6 provided facing the battery insertion hole 4. Reference numeral 32 denotes a positive electrode provided in the battery case 2.

  The erroneous insertion preventing device (latch mechanism) 8 </ b> C includes a latch member 16 that is rotatably attached to the battery case 2 by a pin 18. The latch member 16 is urged clockwise by a coil spring.

  A stopper member 22 is rotatably attached to the latch member 16 by a pin 24. The stopper member 22 is urged clockwise by a coil spring (not shown).

  The stopper member 22 can rotate in the counterclockwise direction. However, since the stopper member 22 abuts against the latch member 16 in the clockwise direction in the illustrated state, the rotation of the stopper member 22 is restricted. A first protrusion 22 a is formed at one end of the stopper member 22, and a pair of second protrusions 22 b are formed at the other end side so as to project laterally.

  The state shown in FIG. 24 shows a state where the erroneous insertion preventing device 8C is in its home position. In this home position, as best shown in FIG. 24C, the second protrusion 22b of the stopper member 22 is engaged with the protrusion (hooking portion) 26, so that the latch member 16 is rotated in the counterclockwise direction. Rotation is prevented.

  As shown in FIG. 25, when the battery 28 is inserted into the battery insertion hole 4 with the correct polarity, that is, with the convex positive electrode (plus electrode) 30 at the head, the convex positive electrode 30 becomes the first protrusion of the stopper member 22. In order to push 22a, the engagement between the protrusion 26 and the second protrusion 22b of the stopper member 22 is released as shown in FIG.

  Therefore, as shown in FIG. 25B, the latch member 16 is rotated counterclockwise by being pushed by the battery 28. When the battery is further inserted, the battery 28 gets over the latch member 16 as shown in FIG. 25C, and the battery 28 is fully inserted until the positive electrode 28 of the battery 28 contacts the positive electrode 32 of the battery case 2.

  FIG. 26 shows the operation of the latch mechanism 8C when the polarity of the battery to be inserted is wrong. That is, when the battery 28 is inserted with the negative electrode at the head, the negative electrode of the battery does not protrude, so the latch member 16 is pushed together with the stopper member 22 and the latch member 16 is rotated counterclockwise around the pin 18. However, since the second protrusion 22b of the stopper member 22 is engaged with the protrusion 26, it cannot rotate counterclockwise. This prevents battery insertion when the polarity is wrong.

The present invention includes the following supplementary notes.
(Supplementary note 1) An apparatus for preventing erroneous insertion of a battery to be inserted into a battery case having a battery insertion hole,
A holding member having a catching portion and rotatably attached to the battery case at the back end with respect to the battery insertion direction;
First urging means for urging the holding member in a first rotation direction for closing the battery insertion hole;
A stopper formed on the battery case for preventing the holding member from rotating in the first rotation direction;
A latch member rotatably attached to the holding member at the front end of the holding member with respect to the battery insertion direction;
Second urging means for urging the latch member in a second rotation direction opposite to the first rotation direction;
A stopper member rotatably attached to the latch member so that one end of the battery is inserted into the positive electrode of the battery at the home position and the other end engages with the catch portion of the holding member;
Third biasing means for biasing the stopper member in the second rotation direction;
When a battery is inserted into the battery insertion hole from the positive electrode side, the stopper member is pushed by the positive electrode of the battery and rotated in the first rotation direction, whereby the stopper member and the catching portion are Allows the battery to be inserted
When a battery is inserted into the battery insertion hole from the negative electrode side, the stopper member and the catching portion are held in engagement so that the stopper member prevents further insertion of the battery. A battery mis-insertion prevention device.
(Additional remark 2) The said 1st, 2nd and 3rd biasing means are comprised from a coil spring, respectively, The erroneous insertion prevention apparatus of the additional remark 1 characterized by the above-mentioned.
(Supplementary note 3) The battery erroneous insertion prevention device according to supplementary note 1 or 2, wherein the latch member and the stopper member are restricted to the home position by a wall of the battery case.
(Supplementary Note 4) The stopper member includes a first protrusion that can contact the positive electrode of the battery formed at the one end, and a second protrusion that can engage with the protrusion of the holding member formed at the other end. The apparatus for preventing erroneous insertion of a battery according to any one of Supplementary notes 1 to 3, wherein
(Supplementary Note 5) A device for preventing erroneous insertion of a battery inserted into a battery case having a battery insertion hole,
A holding member having a catching portion and rotatably attached to the battery case at the back end with respect to the battery insertion direction;
First urging means for urging the holding member in a first rotation direction for closing the battery insertion hole;
A stopper formed on the battery case for preventing the holding member from rotating in the first rotation direction;
A latch member rotatably attached to the holding member at the front end of the holding member with respect to the battery insertion direction;
Second urging means for urging the latch member in a second rotation direction opposite to the first rotation direction;
A stopper member rotatably attached to the latch member so that one end of the battery is inserted into the negative electrode of the battery inserted at the home position and the other end engages with the catch portion of the holding member;
Third biasing means for biasing the stopper member in the second rotation direction;
When a battery is inserted into the battery insertion hole from the negative electrode side, the stopper member is pushed by the negative electrode of the battery and rotates in the first rotation direction, whereby the stopper member and the catching portion are Allows the battery to be inserted
When a battery is inserted into the battery insertion hole from the positive electrode side, the stopper member is prevented from further insertion of the battery by maintaining the engagement between the stopper member and the catching portion. A battery misinsertion prevention device.
(Additional remark 6) The said 1st, 2nd and 3rd biasing means are each comprised from a coil spring, The erroneous insertion prevention apparatus of the battery of Additional remark 5 characterized by the above-mentioned.
(Supplementary note 7) The battery erroneous insertion prevention device according to supplementary note 5 or 6, wherein the latch member and the stopper member are restricted to the home position by a wall of the battery case.
(Supplementary Note 8) The stopper member includes a first protrusion that can be brought into contact with the negative electrode of the battery formed at the one end, and a second protrusion that can be engaged with the catch portion of the holding member formed at the other end. The battery erroneous insertion prevention device according to any one of appendices 5 to 7, characterized in that
(Additional remark 9) It has the engagement piece which can be engaged with a battery at the front-end | tip, The 1st position where this front side edge part was pushed in into the said battery case, and this edge part protruded from the said battery case 10. The battery erroneous insertion prevention device according to any one of appendices 1 to 9, further comprising a battery take-out lever movable between the two.
(Supplementary Note 10) A battery erroneous insertion prevention device inserted into a battery case having a battery insertion hole,
A lever attached to the battery case movably between a first position in which a front end projects from the battery case and a second position in which the end is pushed into the battery case;
A plate that is disposed closer to the battery insertion hole than the lever and is movable between a lowered position and a raised position;
First and second connecting members, each of which is rotatably attached to the lever and the plate member, and forms a parallelogram in cooperation with the lever and the plate member;
A plurality of insulating plates fixed to the plate member apart from each other by the length of the battery to be inserted;
A plurality of slits formed in the battery case facing the battery insertion hole into which each of the insulating plates is inserted,
An apparatus for preventing erroneous insertion of a battery, comprising:
(Supplementary note 11) The battery erroneous insertion prevention device according to supplementary note 10, further comprising a lid that is attached to the battery case and holds the lever in the second position when the battery case is closed.
(Supplementary Note 12) The battery case has a positive electrode formed at the innermost part of the battery insertion hole and an insulation projecting from the electrode surface formed around the positive electrode by the height of the positive electrode convex portion of the battery or less. An apparatus for preventing erroneous insertion of a battery according to appendix 10 or 11, characterized by comprising a ring.
(Supplementary note 13) An apparatus for preventing erroneous insertion of a battery to be inserted into a battery case having a battery insertion hole,
Latch means attached so as to be rotatable with respect to the battery insertion direction;
Stopper means that reacts and is released to the correct shape of the battery and does not release and does not react to the wrong shape of the battery;
Each of the latching means and the biasing means independent or combined in the direction to return the rotation of the stopper means,
When the battery is inserted into the battery insertion hole from the correct pole side, the stopper means reacts to the correct pole shape of the battery and rotates in the first rotation direction, so that the stopper means To allow battery insertion,
When a battery is inserted into the battery insertion hole from the wrong pole side, the stopper means is not released, and the stopper means prevents further insertion of the battery. Prevention device.

It is a figure which shows the incorrect insertion prevention apparatus (latch mechanism) of the battery of 1st Embodiment of this invention. It is a figure which shows a stopper member. It is a figure which shows operation | movement of a latch mechanism when polarity is correct. It is a figure which shows operation | movement of a latch mechanism when polarity is correct. It is a figure which shows operation | movement of a latch mechanism when polarity is correct. It is a figure which shows return operation | movement to the home position of a latch mechanism. It is a figure which shows a battery insertion completion state. It is a figure which shows the taking-out operation | movement of a battery. It is a figure which shows embodiment of the forced removal of a battery. It is a figure which shows operation | movement of a latch mechanism when the polarity of a battery is wrong. It is a figure which shows the shape of the improved stopper member. It is a figure which shows the latch mechanism improved in order to prevent a malfunction. It is a figure which shows the incorrect insertion prevention apparatus (latch mechanism) of the battery of 2nd Embodiment of this invention. It is a figure which shows the stopper member attached to the latch member. It is a figure which shows operation | movement of a latch mechanism when the polarity of the battery inserted is correct. It is a figure which shows operation | movement of a latch mechanism when the polarity of the battery inserted is wrong. It is a figure which shows the shape of the improved stopper member. It is a figure which shows the latch mechanism improved in order to prevent a malfunction. It is a figure which shows the incorrect insertion prevention apparatus of the battery of 3rd Embodiment of this invention. It is a figure which shows operation | movement of 3rd Embodiment when all the batteries are correctly inserted. It is a figure which shows operation | movement of 3rd Embodiment in case the polarity of all the batteries is reverse. It is a figure which shows operation | movement of 3rd Embodiment when the polarity of the battery inserted is one place wrong. It is a figure which shows the operation | movement of 3rd Embodiment when the polarity of the head battery is wrong. It is a figure which shows the incorrect insertion prevention apparatus (latch mechanism) of the battery of 4th Embodiment of this invention. It is a figure which shows operation | movement of a latch mechanism when polarity is correct. It is a figure which shows operation | movement of a latch mechanism when the polarity of a battery is wrong.

Explanation of symbols

2 Battery case 4 Battery insertion hole 8 Battery incorrect insertion prevention device (latch mechanism)
DESCRIPTION OF SYMBOLS 10 Holding member 16 Latch member 22 Stopper member 26 Protrusion 28 Battery 30 Protrusion positive electrode (+ electrode)
34 Lid 37 Lever 40 Latch member 42 Stopper member 46 Battery incorrect insertion prevention device 48 Lever 50 Plate members 52, 54, 56 Connecting member 58 Insulating plate 60 Slit

Claims (3)

A device for preventing erroneous insertion of a battery inserted into a battery case having a battery insertion hole,
Latch means attached so as to be rotatable with respect to the battery insertion direction;
Stopper means that reacts and is released to the correct shape of the battery and does not release and does not react to the wrong shape of the battery;
Each of the latching means and the biasing means independent or combined in the direction to return the rotation of the stopper means,
When the battery is inserted into the battery insertion hole from the correct pole side, the stopper means reacts to the correct pole shape of the battery and rotates in the first rotation direction, so that the stopper means To allow battery insertion,
When a battery is inserted into the battery insertion hole from the wrong pole side, the stopper means is not released, and the stopper means prevents further insertion of the battery. Prevention device. An apparatus for preventing erroneous insertion of a battery inserted into a battery case having a battery insertion hole,
A holding member having a catching portion of a stopper and rotatably attached to the battery case at the back end with respect to the battery insertion direction;
First urging means for urging the holding member in a first rotation direction for closing the battery insertion hole;
A stopper formed on the battery case for preventing the holding member from rotating in the first rotation direction;
A latch member rotatably attached to the holding member at the front end of the holding member with respect to the battery insertion direction;
Second urging means for urging the latch member in a second rotation direction opposite to the first rotation direction;
A stopper member rotatably attached to the latch member such that one end is in contact with the positive electrode or negative electrode of the battery inserted at the home position and the other end engages with the catching portion of the holding member;
Third biasing means for biasing the stopper member in the second rotation direction;
When a battery is inserted into the battery insertion hole from the correct electrode side, the stopper member reacts with the correct electrode shape of the battery and rotates in the first rotation direction, thereby The engagement with the hooking part is released to allow insertion of the battery,
When a battery is inserted into the battery insertion hole from the wrong pole side, the stopper member does not react to the wrong pole shape, and the engagement between the stopper member and the catching portion is maintained. Thus, the erroneous insertion prevention device for a battery, wherein the stopper member prevents further insertion of the battery. An apparatus for preventing erroneous insertion of a battery inserted into a battery case having a battery insertion hole,
A lever attached to the battery case movably between a first position in which a front end projects from the battery case and a second position in which the end is pushed into the battery case;
By operating the lever, a plate material provided so as to be movable between a lowered position and an elevated position;
A plurality of insulating plates fixed to the plate member apart from each other by the length of the battery to be inserted;
An insulating member that is insulated when the wrong pole of the battery hits the electrode on the back side of the battery case or the lid side of the battery case;
The battery case lid that is not closed unless the lever is operated, or the lever is operated at the same time as the closing,
A device for preventing erroneous insertion of a battery, comprising:

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